The 2013R1 Linux release for Blackfin

Some performance and stabilization issues have been fixed since last release. Therefore, we announce the 2013R1 Linux release for both BF5xx and BF60x families to address these issues. Please upgrade to the buildroot distribution in the 2013R1 release for latest revision Linux kernel and middle wares. An overview and basic development guide for the buildroot can be found at http://docs.blackfin.uclinux.org/doku.php?id=buildroot_on_blackfin .

In the development stage of this release, ADI decided to transfer the Linux related open source projects for Blackfin from the old GForge server to the sourceforge.net server. The source repositories, task and bug trackers, mailing lists, news and released files have been migrated to the new projects on the sourceforge.net server. But, you can still navigate to these projects via the home page http://blackfin.uclinux.org . In order to continue to contribute actively to the bug fixing and development of these projects, please create your own account in http://sourceforge.net and subscribe yourself to the relevant projects. There is no change to current help forum and wiki document service.

- Improve the performance of the TWI driver. Reduce the loss of the TWI transfer interrupts when the system is heavily handling other interrupts by reading the TWI RX register till the FIFO is empty and writing the TWI TX register till the FIFIO is full.